.center {
    width: 100%;
    height: 500px;
    background-image: url(../images/bg.png);
    background-size: contain;
    background-repeat: no-repeat;
}

.test {
    height: 450px;
     padding: 20px;
}
.testItem {
    float: right;
    width: 400px;
    height: 400px;
    background-color: #fff;
}
.scan {
    padding: 20px;
    display: flex;
    justify-content: space-between;
}
.public {
    padding-left: 13px;
    background-color: #fffeed;
    width: 86%;
    height: 25px;
    border: 1px solid #fffeed;
    margin: 0 auto;
    font-size: 14px;
}
.mailbox {
    padding-left: 48px;
    width: 86%;
    height: 40px;
    margin-top: 37px;
    border: 1px solid #67b7ed;
   
}
.positioning {
   width: 40px;
   height: 39px;
   position: absolute;
   top: 37px;
   left: 28px;
}
.mailbox1 {
     padding-left: 48px;
    width: 86%;
    height: 40px;
    margin-top: 13px;
    border: 1px solid #67b7ed;
}
.positioning1 {
    width: 40px;
   height: 39px;
   position: absolute;
   top: 14px;
   left: 28px;
}
.publicleft {
    display: flex;
    justify-content: space-between;
    padding: 26px;
    margin-top: -12px;
}
.keystroke{
   width: 86%;
   height: 40px;
   background-color: #cb1119;
   cursor: pointer;
   color: #fff;
   border: 1px solid #cb1119;
}
.qqcontie {
    padding: 26px;
    display: flex;
    justify-content: space-between;
}
.help {
    width: 1240px;
    height: 30px;
    background-color: #67b7ed;
    margin: 0 auto;
    display: flex;
}
.help p {
    margin: 0 auto;
    border-right: 1px solid #cb1119;
}
.help ul li {
border-right: 1px solid #cb1119;
}
.help ul li a {
    margin-left: 10px;
}